Vol. Xxiii] ENTOMOLOGICAL NEWS. II3 



its hind margin rotundo-truncate ; lateral lobes nearly as deep as 

 long, their antero-ventral borders barely, if at all, sinuate, their poster- 

 ior margins shallowly sinuate, the antero-ventral angle inconspicuous, 

 the ventral angle rounded, almost forming a right angle. 



Tegmina in the male almost or quite reaching the tip of the ab- 

 domen, rarely exceeding it and only exceptionally surpassing the tips 

 of the cerci (one individual, Ocean View, N. J.) ; in the female 

 covering from slightly more than half to nine-tenths, usually three- 

 fourths, of the abdomen ; those of the male usually from two and a 

 half to two and two-thirds the length of the pronotum, very rarely as 

 much as three and six-sevenths times the length of the latter; those 

 of the female shorter, mostly slightly more than twice the length 

 of the pronotum, occasionally approaching in length those of the 

 male ; tegmina surpassing the wings by about one-fifth of their length, 

 narrowly rounded at the tips, the veins and cross-veins distinct, but not 

 unusually prominent. The tympanal area (Plate VIII, Fig. 6) is rather 

 conspicuous and is distinctly broader and slightly longer than the 

 same area in X. brevipenne ; the stridulating ridge of the upper tegmina 

 is stout, bearing numerous (about 40) teeth, which are evenly spaced 

 on the outer half of the ridge but densly crowded together on its 

 inner half. (Text-figures i, 2.) 



Anterior tibiae with usually six pairs of spines below, rarely with 

 five. Posterior femora usually with one or two minute spines on 

 their under sides, less frequently with none and still more rarely with 

 as many as four; the genicular lobes terminate each in a minute 

 spine with an additional inconspicuous subterminal spine below. An- 

 terior tibial spines confined to the distal half of the tibiae. 



The supra-anal plate of the male with its hind margin mesially 

 produced and narrowly incised, cerci (Plate VIII, 5 and 4, also text- 

 figure s) moderately slender, curved, apically compressed, their 

 tips rounded, rather blunt ; a prominent swelling is present on the 

 inner margin of each not far from the base and overlying the inser- 

 tion of the tooth. Tooth intemo-ventral, relatively short, but stout 

 and when in situ usually invisible from above. Subgenital plate ex- 

 ceeding the base of the cereal tooth, its sides first diverging and then 

 converging toward the hind margin (Plate VIII, Fig. s), which is con- 

 cavo-truncate with arched sides. Styles short. Cerci exceeding the 

 subgenital plate by three-fourths the length of the latter. 



Supra-anal plate of the female short, equilaterally triangular, about 

 half as long as the cerci. Cerci about 1.2 mm. long, slender, compressed 

 and rounded at the tip, slightly sinuate on their lower sides near their 

 tips, the dorsal side less distinctly sinuate. Ovipositor distinctly, 

 though gently, curved, the tip acute, formed by the upper division, the 

 tip of the ventral division terminating immediately behind the extreme 



